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Spiral bevel gear femtosecond laser processing system and fine correction method thereof

A technology of femtosecond laser processing and spiral bevel gear, which is applied in laser welding equipment, metal processing equipment, manufacturing tools, etc., can solve problems such as complex tooth surface structure, difficult laser beam focusing, immature three-dimensional processing of metal, etc., to achieve linkage Good performance, high processing precision, improving processing efficiency and processing reliability

Pending Publication Date: 2019-10-29
HUNAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Femtosecond laser correction of spiral bevel gears has limitations and defects such as complex tooth surface structure, difficult laser beam focusing, and immature three-dimensional processing of metals. It is urgent to develop an effective femtosecond laser processing system for spiral bevel gears and its fine correction method

Method used

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  • Spiral bevel gear femtosecond laser processing system and fine correction method thereof

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Experimental program
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Effect test

Embodiment 1

[0025] Such as figure 1 As shown, the present invention provides a femtosecond laser processing system for spiral bevel gears, including a femtosecond laser system, a light guide assembly, a three-dimensional galvanometer system 20, an illumination system 5, a precision movement system, and a CCD monitoring system 7; wherein the femtosecond laser The system includes a femtosecond laser 17, a femtosecond laser ablation head 1, and a laser control operation platform 16; the light guide assembly and the three-dimensional galvanometer system 20 together form an optical path; the laser emitted by the femtosecond laser system and the illumination light emitted by the lighting system 5 are both Transmission along the light path; the precision movement system includes a precision three-dimensional movement axis and a control platform 14, which are arranged at the exit of the light path, and a spiral bevel gear 13 is fixed on the precision three-dimensional movement axis and the control...

specific Embodiment approach

[0030]S1: Three-dimensional measurement and processing of the spiral bevel gear to be processed. After the milling of the spiral bevel gear is completed, mesh the tooth surface of the spiral bevel gear along the tooth length and tooth height direction of the root cone, and measure it after positioning through the three-dimensional measurement and processing system 18 to measure the actual tooth surface mesh Grid node coordinates and normal vectors; the three-dimensional measurement and processing system 18 can be a bridge-type three-coordinate measuring machine or a gear measurement center, which can substitute the theoretical coordinates and normal vectors of the grid nodes of the spiral bevel gear tooth surface into its preset measurement coordinate system to obtain the actual tooth surface grid node coordinates and normal vectors, so before this, the theoretical three-dimensional model of the spiral bevel gear is established according to the tooth surface equation, and the t...

Embodiment 2

[0037] The difference between this embodiment and Embodiment 1 is that the femtosecond laser correction system and fine correction method provided in this embodiment are applied to the fine correction of the tooth surface of the spiral bevel gear, and the structure of the femtosecond laser correction system predicts the steps of the fine correction method and Example 1 is almost the same.

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Abstract

A spiral bevel gear femtosecond laser processing system and a fine correction method thereof. The system comprises a femtosecond laser system, a light guide assembly, a three-dimensional galvanometersystem, an illumination system, a precise moving system and a CCD monitoring system, wherein the femtosecond laser system comprises a femtosecond laser, a femtosecond laser ablation head and a laser control operation platform; the light guide assembly and the three-dimensional galvanometer system jointly form a light path; the laser emitted by the femtosecond laser system and the illumination light emitted by the illumination system are transmitted along the light path; the precise moving system comprises a precise three-dimensional moving shaft and a control platform and, is arranged at the outlet of the light path, and a spiral bevel gear is fixed to the upper part of the precise moving platform; and the CCD monitoring system is arranged on an illumination light reflection light path. According to the system, the femtosecond laser with extremely short pulse width and extremely high peak power is adopted, so that a heat affected zone of a processing area is small, and the processing is extremely accurate. Therefore, the femtosecond laser processing system and the fine correction method are high in processing efficiency, high in processing accuracy and high in linkage performance and are suitable for fine correction of tooth surfaces of different spiral bevel gears.

Description

technical field [0001] The invention relates to the field of high-precision correction of gear tooth surfaces, and more specifically, to a femtosecond laser processing system for spiral bevel gears and a fine correction method thereof. Background technique [0002] As a new type of gear transmission mechanism, spiral bevel gear transmission is the key to realize spatial intersecting or staggered transmission. It has many advantages such as large coincidence, strong bearing capacity, low noise, and stable transmission. It is used in transportation, large equipment, Aerospace, construction machinery and other fields have broad application prospects, but due to the low processing precision in China, there are few applications in high-end, precision and cutting-edge equipment. The traditional tooth surface quality control has the contact accuracy of the tooth surface, and the geometric accuracy of the tooth surface is ignored, so it is difficult to realize the processing of high...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K26/362B23K26/082B23K26/067B23K26/06B23K26/03B23K26/70B23K26/14
CPCB23K26/362B23K26/0821B23K26/0648B23K26/0652B23K26/067B23K26/702B23K26/032B23K26/14
Inventor 明瑞明兴祖肖勇波金磊申警卫林嘉剑李湾蔡颂
Owner HUNAN UNIV OF TECH
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